864439093 has 16 divisors (see below), whose sum is σ = 1002516480. Its totient is φ = 730048176.

The previous prime is 864439091. The next prime is 864439097. The reversal of 864439093 is 390934468.

864439093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 864439093 - 2¹ = 864439091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864439091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323280 + ... + 325942.

It is an arithmetic number, because the mean of its divisors is an integer number (62657280).

Almost surely, 2^864439093 is an apocalyptic number.

It is an amenable number.

864439093 is a deficient number, since it is larger than the sum of its proper divisors (138077387).

864439093 is a wasteful number, since it uses less digits than its factorization.

864439093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 864439093 is about 29401.3450882778. The cubic root of 864439093 is about 952.6019503121.

The spelling of 864439093 in words is "eight hundred sixty-four million, four hundred thirty-nine thousand, ninety-three".